Flood and landslide forecast

Debris avalanches, debris flows and slush slides warning yellow level for Vestlandet, Trøndelag and parts of Nordland (NVE)

Published: Valid: to 2020-01-20 06:59 AM Next forecast before:

Type

Landslide

Heavy rain is expected, up to 100 mm/day. Relatively high temperatures and windy conditions, causes significant snowmelting. Snowmelt will occur even in the high mountains.

The soil is water-saturated. Steep slopes, as well as streams and river with high discharge, are particularly exposed. Risk of slush flows is especially high in areas with more than 40 cm snow. Slush flows are triggered even in relatively gentle slopes, where water accumulates. Slush flows follow terrain depressions and may develop into debris flows. Debris flows may reach the valley bottom even if they are triggered high in the terrain.
Danger increase Sunday evening 19. Jan. 2020
Danger decrease Tuesday early morning 21. Jan. 2020
Altitude 0 - 1500 masl
Consequence Some landslides are expected. A few large events may occur. Exposed railways and roads may be closed. Debris avalanches/shallow slides: Soil slides and rapid movement of saturated soil in steep terrain. Debris flows: A "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Slush slides: A flow of waterlogged snow. These landslides can start in relatively flat terrain and seek towards streams and steep slopes.
Advice Keep away from steep slopes, as well as streams and rivers with high discharge. Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides.
Warning level meaning Challenging situation which requires monitoring and may cause local damages. Yellow level is the lowest of our warning levels.

The warnings are valid from 07.00  - 07.00.

Map overview
Rain
Snowmelt
Water saturation

08.00-21.00 every day

Phone: +47 404 36 000

08.00 - 21.00 every day

Phone: +47 400 28 777